Improvement in cultivators



UNITED vSTATES PATENT OFFICE...

ALONZO W. OLDS,'( )FGREEI\T OAK,MICHIGAN.

-nvngxrtovi-:Mt-:NTtNl cuLTivAToRs.

`Speciiication'forming part of Letters Patent No. 36,724, dated Octuberv'l, 1862. i

To all whom Ait may concern:

Be it known thatI, ALoxzo W. OLDs, ot'. Green Oak, in the counti of Livingston and tate of Michigan, haveinveuted new and 4 useful Improvements in Cultivators; and I do hereby decl-ure that the'followi'ng is a full and com plete description .ofthe construction and operation, rel'erence being had to. the accompanying drawings, ina-king part of this specificationin which- .l Figure-11s atop view, and Fig.`2 is a section.l

Like letters refer to like parts in the several views. l i

The nature ot' my invention relates to sucl a construction-of 'a cullivator that it is sup ported in part byone or morebearin'g-wheels so-arrilged and adjusted 4that a forwa'rt';

4Enlevement of the implement will canse a positive rotation of the cultivator, as hereinafter speeiied, and to the form andzstructure of the eultivator-teeth. A A A represent the arms or framework of the cultivator. These radiate from between two circular plates, B B, to which they are secured by bolts or otherwise.

A spindle orvertical axis, C, rises from the center of the plates B B, and upon this-vertical axis is placed a pipe-box, E..v The drawbar F is,secured to this pipe-box E, thus allowing the plates B and arms A to. rotate upon the ax'is C.` 'r

To-the Vback partof the pipe-box E is secured a iiange or tube, H, to which is attached byv bolts or .otherwise an 'axle-tree, I. lffa.

ti1beis used, the axle-tree passes 4through it,

or a simple angemay be used, anti the axletree secured to it by both. In either case .wedges J J may be used to adjust the axletreeobliquely 4to the spindle C; or the axletree maybe secured at rightanglesthereto,

and the wheels adjusted'higher or lower by means of au adjustable axle. i p

K K represent the bearing-wheels. .There 4may be either one or. two used. lIn either4 case the axle-tree and wheels should be so adjusted that'one side or the other ot' the'cultivater willbe slight-ly elevated, as in Fig. 2, and this willcausc one sidel to press more lightly upon the soil than the other,.a`nd thus cause positive rotatiou,"depending for itsidirectlou as to whether the wheel K or K is raised. WhereV but one wheelA isused that' side Aof the tiultivator` toward the wheel will move forward faster than `the other side, for the reasonthat the'teeth on the opposite side take deeper-hold upon the soil.

`The cultivator-tooth I) is ot a peculiar construction, anti may -be imade either fromA wrought or castmetal. The tooth is hollow throughout anti bell-shaped. The shank la of the tootlris round and about two inches in diameter, the whole length ofthe tooth being' from six to eight inches. From the middle to the lower end the tooth 'expands rapidly in all directions, forming a bell-muzzle, .as shown in Figs. 4 and 5. y The tooth D may be secured to the arm A or .frame-work of the cultivator b v means of screw-bolts passing throughthe upper end, asV

at d, or a bolt may he castin. Ijpret'erthe former. The walls of the tooth areitpade quite thin, as tn uch so as,v is consistent with strength. About one-fourth ot' an inch thickness of metal will give sntlicient strength to the lower half. The shank may be a little thick The width of the expanded portion of tlie/ ooth 'e c should. be equal to the length. Pour, six, or more of these teeth may be used in one cultivator, and placed anti secured to the frame in a. Acircle having aradial /distance 'of about .eighteen in chesnfrom th center of the frame. The diameter of the ilrcle upon which the teeth are placed and ,the number of teeth used will depend upon purposes to'which the cul- `tivator is to be applied. 'In the cultivation of maizeandother 'plants usually planted in rows the width should 'be such as 'to pass freely between the rows. In this caysethe axletree should be lengthened so as to bring the wheel' or wheels outside ot' the rows, as seen in Fig. 2 at R R. Y

Either onefor twowh'eelsmay .housed 'in this manner with the cultivator 'between the rows. ln cultivating fallow groundthe wheels maybe placed close tothc'frame ot'v the culti-1 vater, as seen in Fig. 1. This cultivator. in its operation sweeps overevery inch ofground, cutting oli' every plant thatstands i n its track.

VWhat I claim as my improvemerit, and de s're to secure by Letters Patent, is#- .1. The adjustable axle tree I, hearing-wheels K and K', in -eombina-tionwith. the cultivatorf frame A B, axis C, and pi pebox E, when these parts are arranged and operated 11s-and for the purpose specified. l v

2. The bell-"shaped round-shanked tooth,

constructed and loperating," as and for thefpurpose herein set'forth.. n

AV.W..OLD S. 

